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authorseanc <seanc@FreeBSD.org>2003-03-05 22:42:03 +0000
committerseanc <seanc@FreeBSD.org>2003-03-05 22:42:03 +0000
commit7fd03de4a042e4e58a05cd47a0b7c4aa4fee3f31 (patch)
tree8f8c62d30025aaead67817215d18b63479196cc5 /sbin/ping/ping.c
parent0f6cf6df5bfea71942ee830ab76c6462fb4268b4 (diff)
downloadFreeBSD-src-7fd03de4a042e4e58a05cd47a0b7c4aa4fee3f31.zip
FreeBSD-src-7fd03de4a042e4e58a05cd47a0b7c4aa4fee3f31.tar.gz
Update ping to be WARNS=2 compliant.
Reviewed by: -audit (no objections ~1mo) Approved by: nectar
Diffstat (limited to 'sbin/ping/ping.c')
-rw-r--r--sbin/ping/ping.c61
1 files changed, 35 insertions, 26 deletions
diff --git a/sbin/ping/ping.c b/sbin/ping/ping.c
index 8baf333..5ea9d53 100644
--- a/sbin/ping/ping.c
+++ b/sbin/ping/ping.c
@@ -210,7 +210,7 @@ main(argc, argv)
int argc;
char *const *argv;
{
- struct sockaddr_in from, sin;
+ struct sockaddr_in from, sock_in;
struct in_addr ifaddr;
struct timeval last, intvl;
struct iovec iov;
@@ -237,7 +237,7 @@ main(argc, argv)
#endif
unsigned char loop, mttl;
- source = NULL;
+ payload = source = NULL;
#ifdef IPSEC_POLICY_IPSEC
policy_in = policy_out = NULL;
#endif
@@ -468,9 +468,9 @@ main(argc, argv)
fill((char *)datap, payload);
}
if (source) {
- bzero((char *)&sin, sizeof(sin));
- sin.sin_family = AF_INET;
- if (inet_aton(source, &sin.sin_addr) != 0) {
+ bzero((char *)&sock_in, sizeof(sock_in));
+ sock_in.sin_family = AF_INET;
+ if (inet_aton(source, &sock_in.sin_addr) != 0) {
shostname = source;
} else {
hp = gethostbyname2(source, AF_INET);
@@ -478,18 +478,18 @@ main(argc, argv)
errx(EX_NOHOST, "cannot resolve %s: %s",
source, hstrerror(h_errno));
- sin.sin_len = sizeof sin;
- if (hp->h_length > sizeof(sin.sin_addr) ||
+ sock_in.sin_len = sizeof sock_in;
+ if ((unsigned)hp->h_length > sizeof(sock_in.sin_addr) ||
hp->h_length < 0)
errx(1, "gethostbyname2: illegal address");
- memcpy(&sin.sin_addr, hp->h_addr_list[0],
- sizeof(sin.sin_addr));
+ memcpy(&sock_in.sin_addr, hp->h_addr_list[0],
+ sizeof(sock_in.sin_addr));
(void)strncpy(snamebuf, hp->h_name,
sizeof(snamebuf) - 1);
snamebuf[sizeof(snamebuf) - 1] = '\0';
shostname = snamebuf;
}
- if (bind(s, (struct sockaddr *)&sin, sizeof sin) == -1)
+ if (bind(s, (struct sockaddr *)&sock_in, sizeof sock_in) == -1)
err(1, "bind");
}
@@ -505,7 +505,7 @@ main(argc, argv)
errx(EX_NOHOST, "cannot resolve %s: %s",
target, hstrerror(h_errno));
- if (hp->h_length > sizeof(to->sin_addr))
+ if ((unsigned)hp->h_length > sizeof(to->sin_addr))
errx(1, "gethostbyname2 returned an illegal address");
memcpy(&to->sin_addr, hp->h_addr_list[0], sizeof to->sin_addr);
(void)strncpy(hnamebuf, hp->h_name, sizeof(hnamebuf) - 1);
@@ -597,7 +597,7 @@ main(argc, argv)
ip->ip_off = df ? IP_DF : 0;
ip->ip_ttl = ttl;
ip->ip_p = IPPROTO_ICMP;
- ip->ip_src.s_addr = source ? sin.sin_addr.s_addr : INADDR_ANY;
+ ip->ip_src.s_addr = source ? sock_in.sin_addr.s_addr : INADDR_ANY;
ip->ip_dst = to->sin_addr;
}
/* record route option */
@@ -741,7 +741,7 @@ main(argc, argv)
int cc, n;
check_status();
- if (s >= FD_SETSIZE)
+ if ((unsigned)s >= FD_SETSIZE)
errx(EX_OSERR, "descriptor too large");
FD_ZERO(&rfds);
FD_SET(s, &rfds);
@@ -762,7 +762,7 @@ main(argc, argv)
if (n < 0)
continue; /* Must be EINTR. */
if (n == 1) {
- struct timeval *t = NULL;
+ struct timeval *tv = NULL;
#ifdef SO_TIMESTAMP
struct cmsghdr *cmsg = (struct cmsghdr *)&ctrl;
@@ -778,19 +778,19 @@ main(argc, argv)
#ifdef SO_TIMESTAMP
if (cmsg->cmsg_level == SOL_SOCKET &&
cmsg->cmsg_type == SCM_TIMESTAMP &&
- cmsg->cmsg_len == CMSG_LEN(sizeof *t)) {
+ cmsg->cmsg_len == CMSG_LEN(sizeof *tv)) {
/* Copy to avoid alignment problems: */
memcpy(&now, CMSG_DATA(cmsg), sizeof(now));
- t = &now;
+ tv = &now;
}
#endif
- if (t == NULL) {
+ if (tv == NULL) {
(void)gettimeofday(&now, NULL);
- t = &now;
+ tv = &now;
}
- pr_pack((char *)packet, cc, &from, t);
- if (options & F_ONCE && nreceived ||
- npackets && nreceived >= npackets)
+ pr_pack((char *)packet, cc, &from, tv);
+ if ((options & F_ONCE && nreceived) ||
+ (npackets && nreceived >= npackets))
break;
}
if (n == 0 || options & F_FLOOD) {
@@ -1579,16 +1579,25 @@ fill(bp, patp)
static void
usage()
{
- (void)fprintf(stderr, "%s\n%s\n%s\n",
-"usage: ping [-AaDdfnoQqRrv] [-c count] [-i wait] [-l preload]",
-" [-M mask | time] [-m ttl] [-p pattern] "
+ (void)fprintf(stderr,
#ifdef IPSEC
#ifdef IPSEC_POLICY_IPSEC
-"[-P policy] "
+"%s\n%s\n%s%s\n%s\n",
+#else
+"%s\n%s\n%s\n%s\n",
#endif
+#else
+"%s\n%s\n%s\n%s\n",
#endif
-"[-S src_addr]",
+
+"usage: ping [-AaDdfnoQqRrv] [-c count] [-i wait] [-l preload]",
+" [-M mask | time] [-m ttl] [-p pattern] [-S src_addr]",
" [-s packetsize] [-t timeout] [-z tos]",
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+" [-P policy]",
+#endif
+#endif
" [host | [-L] [-I iface] [-T ttl] mcast-group]");
exit(EX_USAGE);
}
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